Improvement in grain-drills



M. G. MADSON. Grain-Drill. No, "222,063;

Patented Nov. 25, 1879.

WITNESSES: i I INVENTOR: WW zgwddw/ ATTQRNBYSI UNITED STATES PATE FFIGE.

MADS G. MADSON, OF OSLO, WISCONSIN.

IMPROVEMENT IN GRAIN-DRILLS.

Specification forming part of Letters Patent No. 222,063, dated November25, 1879 application filed August 13,1879.

To all whom it may concern:

Be it known that I, MADS G.MADSON, of Oslo, in the county of Manitowocand State of Wisconsin have invented, a new and 1mprovedGrain-Drill, ofwhich the following is a specification.

The invention consists in combining with the feed-wheel a seed-cuphaving a hinged part provided with a recessed projection and lip,andincombining with a chain-beam and pinion on the shaft-beam asegmental ratchet-lever fulcrumed on the side plate, all as hereinafterdescribed.

In the accompanying drawings, Figure l is a plan of one end of the frameof a grain-drill, showing my improvements. Fig. 2 is a crosssection ofthe same on line or m, and Fig. 3 is a front view of the seed-cups anddriving-shaft.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A is the main beam of the drill. B is oneside plate attached thereto. 0 is the driVingshaft, passing through abox, a, in the side plate, and having on its outer end a spindle,between the collar and nut whereof is held a driving-wheel, D, turningloosely on the spindle, and having on the inner end of its hub aratchet, c.

E is a ratchetclutch held on the feathered portion of the shaft, betweenthe side plate and driving-wheel. When the drill is in motion, movingthis clutch to the wheel it is engaged instantly, giving motion to thedrivingshaft, while moving it from the wheel stops the shaft and feedingmechanism.

The driving-shaft passes through the seedcup F, and carries within thesame the feedwheel (I. This arrangement of the feed-wheel on the shaft,together with the ratchet-clutch, gives a more direct movement to thefeedwheel than in the machines heretofore used, wherein the feed-wheelswere connected with the shaft by gearing, and motion given to the shaftby a ratchet and pawl, both of which arrangements caused a loss of powerand motion.

The lower part, c, of the feed'cup is hinged by its rear edge, f, to theupper part, so that it can be opened, as indicated by the dotted linesin Fig. 2, to give access to the cups to cleanse the same or clear themwhen choked When closed this hinged portion is fastened by a loop, g,hinged or pivoted to the upper part and adapted to swing down over thelower part under a lip, h, and thus hold it closed. This arrangementgreatly facilitates the opening and closing of the cups.

G is the'feed-regulator, composed of a sleeve closed at one end, i, witha square hole through the same for the drivin g-shaft, so that theregulator turns with the shaft, but at the same time moves freely andeasily backward and forward. The opposite end of the feed-regulator isadapted to pass through a circular opening, i, in the adjacent side ofthe feed-cup, so that it will slide over the feed-wheel, its internalsurface being grooved to receive the ribs of the feed-wheel, and thusenable a close joint to be made between the wheel and regulator topreventthe grain from getting between them.

To move the feed-regulator a bar, j, is passed through an opening in theside of the cup against the driving-shaft, thence under the feed-Wheeland regulator, and is connected by a rivet with a projection, 70, fromthe outer end of the regulator. This bar slips freely back and forth,carrying the regulator in and out of the cup, thus regulating the extentof the ribbed surface of the feed-wheel exposed to the grain, and actingon the same in the operation of feeding. regulator in the drill, so thatwhen moved it adjusts simultaneously and to the same extent all theregulators, and thus insures evenness in the feeding.

H is the segmental ratchet-lever, fulcrumed at it in the'side plate andwith the ratchet engaging the pinion l. on the shaft of the chainbeam I,with which the drill-teeth are connected, so that by turning the leverbackward on its fulcrum the pinion, and through it the beam, isrotated,winding up the chains and raising the drill-teeth quickly,easily, and all together, and they may be retained in that position by apawl, m, engaging a rack, or, on the side plate. The teeth are loweredby simply releasing the pawl and allowing the lever to move forward,whereby the beam rotates in the opposite direction, unwinding the chain,and the teeth fall to the ground.

It is connected with every p Having thus described my invention, what Iclaim as new, and desire to secure by Letters Patent, is-

1. The hinged part c of the seed-cup, provided With a recessedprojection to receive the flange of the feed-wheel, and the lip h, toadapt it to be secured to the upper part by the loop g, in combinationwith the feed-wheel cl, substantially as and for the purpose set forth.

2. The segmental ratchet-lever H, fulcrumed in the side plate, B, incombination with the chain-beam I, carrying the pinion l, for supplyinga rapid and easily-operated power for raising and lowering thedrill-teeth, substantially as described.

MADS GUNDER MADSON, Witnesses:

CORNELIUS MADSON, O. ToRRIsoN.

